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<head><meta charset="utf-8"><title>deeply-nested-async-debug had a 300% slowdown since beta · t-compiler/performance · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/index.html">t-compiler/performance</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/deeply-nested-async-debug.20had.20a.20300.25.20slowdown.20since.20beta.html">deeply-nested-async-debug had a 300% slowdown since beta</a></h3>

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<a name="220376704"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/deeply-nested-async-debug%20had%20a%20300%25%20slowdown%20since%20beta/near/220376704" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/deeply-nested-async-debug.20had.20a.20300.25.20slowdown.20since.20beta.html#220376704">(Dec 18 2020 at 14:20)</a>:</h4>
<p><a href="https://perf.rust-lang.org/detailed-query.html?commit=d8d3ab96aa94423f1bdfbb605098a506ab5edc7e&amp;base_commit=bf469eb6c20ccea05400a1942c70343f36705e1c&amp;benchmark=deeply-nested-async-debug&amp;run_name=full">https://perf.rust-lang.org/detailed-query.html?commit=d8d3ab96aa94423f1bdfbb605098a506ab5edc7e&amp;base_commit=bf469eb6c20ccea05400a1942c70343f36705e1c&amp;benchmark=deeply-nested-async-debug&amp;run_name=full</a></p>
<p>Almost all of it seems to be in codegen? Not sure why it regressed so much.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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